Water treatment method combining PVA gel bead and electrolysis
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United States of America Patent
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Sep 19, 2024
app pub date -
Aug 15, 2023
filing date -
Aug 15, 2022
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This invention demonstrates with practical examples that the PVA-immobilized microbial gel bead technology can protect microorganisms and can perfectly match the electrolysis that inhibits microorganisms. For instance: (1) After nitrification in the PVA gel bead system, nitrate-nitrogen can be removed through electrolysis. (2) In the case of high COD (Chemical Oxygen Demand) or organic nitrogen concentration, the PVA gel bead system can be used for degradation or hydrolysis, followed by rapid electrolytic removal of refractory COD and ammonia-nitrogen. (3) By integrating the PVA gel bead system with the electrolysis system in parallel, the rapid response of electrolysis can be utilized to swiftly adjust the overall performance of water treatment. (4) For low-salinity water body, the “PVA Gel Bead Energization” treatment can be applied, where the electrodes are directly inserted into the bioreactor. (5) As for high-salinity water body, electrolysis can be conducted first to increase the C/N ratio, facilitating subsequent COD degradation in the PVA gel bead system.
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